Who We Are With over 3.2M+ installs and 50k+ GitHub stars, Cline is the leading open-source AI coding agent. Trusted by the world's largest engineering organizations and individual developers alike, Cline is model agnostic, provider agnostic, and IDE agnostic, meeting engineers everywhere they work while keeping code on your infrastructure. Teams choose Cline because it's the only coding agent that combines cutting-edge capability with enterprise-grade security, using existing provider contracts directly with zero markup. Cline has raised $32M in combined Series A and Seed funding, led by Emergence Capital and Pace Capital, with participation from 1984 Ventures, Essence VC, and Cox Exponential.

What We Are Looking For As a Senior Frontend Engineer, you’ll own major product areas of our platform, building real-time, developer-centric UIs for code assistance, debugging, and collaboration. You’ll work closely with product, design, and AI engineers to deliver seamless, fast, and delightful user experiences.

At a Senior Frontend Engineer level, you’ll help define frontend architecture, mentor engineers, and shape product direction for the developer experience.

Responsibilities

• Design and build scalable, performant UIs for real-time AI-assisted coding workflows.
• Collaborate with internal and external teams to integrate LLM-powered features seamlessly into the UI.
• Drive development of a design system & component library for consistency and velocity.
• Optimize frontend performance, accessibility, and reliability for enterprise-scale use cases.
• Implement secure integrations with IDEs, Git providers, and CI/CD pipelines.
• At senior levels: lead frontend architecture decisions, mentor teammates, and influence product strategy.

Qualifications

• 6-8+ years of frontend engineering experience.
• Deep expertise in React, Next.js, and TypeScript (or equivalent modern frameworks).
• Strong understanding of state management, performance optimization, and real-time UIs.
• Experience building complex, enterprise-grade applications or developer tools.
• Knowledge of standard API integrations patterns.
• Excellent collaboration and communication skills, with a product mindset.

Our cash compensation range for this role is $225,000 - $250,000+.

Final offer amounts are determined by multiple factors, including, experience and expertise, and may vary from the amounts listed above.

Equity: In addition to the base salary, equity may be part of the total compensation package. Benefits: Comprehensive health, dental, and vision insurance for you and your dependents. Includes a 401(k) plan.